.led-off, .led-off:hover, .led-off:focus {
  color: #555;
  background-color: #A9A9A9;
  border-color: #ccc;
}

.led-on, .led-on:hover, .led-on:focus {
  color: #555;
  background-color: #7FFF00;
  border-color: #ccc;
}

.carousel-control-next,
.carousel-control-prev , .carousel-indicators {
    filter: invert(100%);
}

textarea {
    background-color:lightgray;
    font-family: monospace;
}
